Convert triangular meshes from OBJ format to VTK format fbaa63c434a5856441f1e26661cc28817055e966 2026-06-29T14:20:51Z 2026-06-29T14:40:32Z Vincent Forest vincent.forest@meso-star.com commit fbaa63c434a5856441f1e26661cc28817055e966 parent 81f0a74f447c1dd168cd2acf4ab9c3589c72e758 Author: Vincent Forest <vincent.forest@meso-star.com> Date: Mon, 29 Jun 2026 16:20:51 +0200 The input file is now an optional input argument. As a result, the input data is not necessarily copied to a temporary file, as was the case when data was read from standard input. This should improve performance. Note that the performance gains are not immediate, because data processing can no longer assume that the data has been preprocessed by a copy step that removes leading and trailing spaces and multiple spaces. Regular expressions must therefore account for more scenarios, making them more computationally intensive to evaluate. However, it appears (at least with GNU grep) that basic regular expressions (BREs) are evaluated less efficiently than extended regular expressions (EREs). Thus, using EREs for grep directives minimizes the performance loss associated with more complex regular expressions. Providing a file as a command argument therefore results in a significant performance gain without this new capability having too much of an impact on the performance of the previous behavior. 81f0a74f447c1dd168cd2acf4ab9c3589c72e758 2026-06-29T07:28:49Z 2026-06-29T07:28:49Z Vincent Forest vincent.forest@meso-star.com commit 81f0a74f447c1dd168cd2acf4ab9c3589c72e758 Author: Vincent Forest <vincent.forest@meso-star.com> Date: Mon, 29 Jun 2026 09:28:49 +0200 Convert a mesh from OBJ format to legacy VTK format Assume that the input mesh consists only of triangular faces.